Singapore SRS Tax Savings Calculator 2026 — S$15,300 Annual Cap, Marginal & Effective Tax Savings, Progressive Tax Bracket Breakdown & Multi-Year Contribution Projection

Singapore SRS overview 2026: the Supplementary Retirement Scheme is a voluntary savings scheme introduced by the Singapore government to encourage individuals to save for retirement beyond CPF, with the added incentive of immediate tax relief; key features: contributions are fully tax-deductible against chargeable income, dollar-for-dollar, up to the annual cap; SRS funds can be invested in a wide range of products: SGX-listed stocks and S-REITs, unit trusts, ETFs, bonds, fixed deposits, and insurance products through approved providers; investment gains within SRS are NOT taxed annually (unlike a normal brokerage account where dividend income may be assessable, though Singapore generally doesn’t tax most dividend types for individuals anyway); withdrawals: at the statutory retirement age (currently 63, increasing to 64 from 1 July 2026), 50% of withdrawals are tax-free and 50% is taxed at your prevailing marginal rate at time of withdrawal, typically spread over up to 10 years for maximum tax efficiency; early withdrawal (before statutory retirement age): incurs a 5% penalty AND the full withdrawn amount becomes taxable (not just 50%); who should use SRS: any Singapore tax resident with chargeable income above approximately S$40,000-S$80,000 (where marginal rates of 7%-15%+ start to make a meaningful difference) should strongly consider maximising SRS contributions as part of their annual tax planning; SRS operators: three banks are approved to operate SRS accounts in Singapore: DBS, OCBC, and UOB; you can only have one SRS account at a time.

Singapore SRS contribution cap 2026: Singapore Citizens and Permanent Residents (PR): S$15,300 per calendar year; Foreigners (non-SC/PR): S$35,700 per calendar year; why foreigners have a higher cap: foreign employees in Singapore are generally not eligible for CPF contributions (CPF is restricted to Citizens and PRs in most cases), so the SRS cap for foreigners is set at approximately 2.33× the citizen/PR cap to provide a comparable overall retirement savings and tax relief opportunity; how the cap is structured: this is a CALENDAR YEAR cap, not a tax-year or rolling 12-month cap; contributions from 1 January to 31 December 2026 count toward the 2026 cap; the cap does NOT carry forward — if you contribute only S$10,000 in 2026, you cannot contribute S$20,600 in 2027 to “catch up”; the unused S$5,300 cap room from 2026 is permanently lost; cap history: the SRS caps have been adjusted periodically by the government to reflect changes in the CPF salary ceiling and cost of living; always verify the current year’s exact cap figures on the IRAS website (iras.gov.sg) or CPF Board / SRS operator bank websites, as caps can change with Budget announcements; what happens if you contribute MORE than the cap: any contribution above the cap still goes into your SRS account but receives NO further tax relief for that contribution; the excess amount is essentially “wasted” from a tax perspective (though it still grows tax-deferred inside SRS and benefits from the same withdrawal rules), so most people should avoid over-contributing beyond the cap.

SRS tax savings calculation methodology 2026: the PRECISE calculation: Tax Saved = Tax(Chargeable Income) − Tax(Chargeable Income − SRS Contribution); using Singapore’s FULL progressive tax table (not a simplified flat estimate); why this differs from “contribution × marginal rate”: the marginal rate is the rate applied to your LAST dollar of income BEFORE the SRS deduction; if your SRS contribution is large enough to push your income down past a bracket boundary, PART of the contribution offsets income at the marginal rate, and the REMAINING part offsets income at a LOWER rate (the next bracket down); example: income S$125,000 (marginal rate 15%, since 15% bracket starts at S$120,001); SRS contribution S$15,300; new income S$109,700 (now in 11.5% bracket); only S$5,000 of the contribution (S$125,000 − S$120,000) was actually offsetting 15%-taxed income; the remaining S$10,300 offsets 11.5%-taxed income; precise tax saved = (S$5,000 × 15%) + (S$10,300 × 11.5%) = S$750 + S$1,184.50 = S$1,934.50; effective rate = S$1,934.50 / S$15,300 = 12.65% (lower than the 15% marginal rate); when marginal rate EQUALS effective rate: this happens when your income, even after the FULL SRS deduction, remains within the same tax bracket — i.e., the contribution doesn’t cross any bracket boundary; this calculator always uses the precise progressive calculation method (not a simplified marginal-rate shortcut), giving you the exact figure that matches what IRAS would compute on your actual tax assessment.

SRS and the S$80,000 personal income tax relief cap 2026: Singapore imposes an overall cap of S$80,000 on the TOTAL personal income tax reliefs an individual can claim in a Year of Assessment (effective from YA2018); SRS contributions are ONE of many reliefs that count toward this combined S$80,000 cap, alongside: CPF cash top-up relief (Retirement Sum Topping-Up Scheme, up to S$16,000); CPF relief for employees (mandatory contributions, automatically calculated); earned income relief; course fees relief; parent/handicapped parent relief; working mother’s child relief (WMCR); NSman relief; life insurance relief; and others; how this affects SRS planning: if you’re a high earner already claiming significant reliefs from CPF top-ups, course fees, parent relief, etc., and your TOTAL reliefs (including the maximum S$15,300/S$35,700 SRS) would exceed S$80,000, the excess reliefs beyond S$80,000 provide NO further tax benefit; example: someone claiming S$16,000 CPF cash top-up relief + S$10,000 course fees relief + S$15,300 SRS + S$8,000 NSman relief + various other reliefs totaling S$45,000 in additional reliefs (excluding CPF employee contribution and earned income relief, which are typically calculated separately and may or may not count toward this specific cap depending on relief type) — most taxpayers will NOT hit the S$80,000 combined cap unless they are claiming very substantial reliefs across multiple categories; for the vast majority of Singapore taxpayers, the SRS cap (S$15,300/S$35,700) itself is the binding constraint, not the S$80,000 overall relief cap; verify your specific situation using IRAS’s relief calculator or consult a tax advisor if you have multiple substantial reliefs.

SRS eligibility for foreigners working in Singapore 2026: yes — foreigners (non-Singapore Citizens, non-PRs) working and earning income in Singapore are eligible to open and contribute to an SRS account; eligibility requirements: must be at least 18 years old; must not be an undischarged bankrupt; must have a valid Employment Pass, S Pass, or other valid work pass authorizing employment in Singapore (or otherwise be earning Singapore-sourced taxable income); SRS cap for foreigners: S$35,700 per calendar year (significantly higher than the S$15,300 cap for Citizens/PR), reflecting that foreigners typically don’t have CPF as a parallel retirement savings vehicle; tax relief works identically: foreigners contributing to SRS receive the same dollar-for-dollar tax relief against chargeable income, calculated using the same progressive Singapore resident tax rates (provided the foreigner qualifies as a Singapore tax resident, which generally requires 183+ days of physical presence/work in Singapore in the relevant year); important consideration for foreigners on Employment Pass: if you anticipate leaving Singapore permanently (end of EP, return to home country) within the next few years, carefully consider SRS liquidity; while non-citizens/PRs CAN withdraw SRS funds upon leaving Singapore permanently (not at retirement age) with only the standard tax treatment (not the early withdrawal penalty, under specific conditions related to “foreigner status” and ceasing Singapore employment) — verify the latest IRAS rules on this exception, as it provides more flexibility for foreigners than for citizens regarding early access to SRS funds without the 5% penalty.

Unused SRS contribution room — Singapore 2026: the SRS contribution cap (S$15,300 for Citizens/PR, S$35,700 for foreigners) is a USE-IT-OR-LOSE-IT annual allowance; key rule: there is NO carry-forward of unused SRS contribution room; if you only contribute S$8,000 in 2026 (out of the S$15,300 cap), the unused S$7,300 cannot be added to your 2027 cap; your 2027 cap remains S$15,300 (or whatever the cap is set at for that year), independent of any 2026 shortfall; this is DIFFERENT from some other countries’ retirement schemes (e.g., UK pension allowance carry-forward, which allows unused allowance to roll forward up to 3 years) — Singapore’s SRS has no such mechanism; implications for tax planning: if you have a high-income year, maximise your SRS contribution that year — you cannot “save up” contribution room for future high-income years; if you anticipate a future bonus or windfall, plan to make the SRS contribution in THAT specific calendar year (before 31 December) to capture the tax relief, rather than assuming you can contribute more in a later year to compensate for an earlier year’s under-contribution; multi-year SRS strategy: the optimal approach for most Singapore residents with stable or growing income is to contribute the maximum S$15,300 (or S$35,700 for foreigners) EVERY year consistently, since: (a) tax savings compound annually, (b) investment growth compounds over a longer period if contributed earlier, and (c) there’s no benefit to “saving” contribution capacity since it doesn’t carry forward; use this calculator’s multi-year projection feature to model consistent annual maximum contributions over your career.

SRS and CPF — are they connected? Singapore 2026: SRS and CPF are completely SEPARATE and INDEPENDENT schemes; SRS contributions do NOT reduce your CPF contributions: your monthly CPF contributions (Ordinary Wage and Additional Wage components, split between employer and employee) continue exactly as normal, calculated based on your salary and CPF contribution rates by age band; SRS is purely a VOLUNTARY, ADDITIONAL savings scheme on top of CPF — it’s funded from your take-home pay (post-CPF) via a separate bank transfer to your SRS account; SRS contributions do NOT affect your CPF Ordinary Account (OA), Special Account (SA), or MediSave Account (MA) balances in any way; key differences between SRS and CPF: CPF: mandatory (for citizens/PR with formal employment), funds locked until 55 (for SA/MA components partially) or 65 (most funds via Retirement Account), restricted investment options (CPFIS for limited equities/bonds), CPF interest rates 2.5%-6% depending on account; SRS: voluntary, funds accessible before retirement age (with penalty), much broader investment options (stocks, REITs, ETFs, unit trusts, bonds, fixed deposits), investment returns depend entirely on what you invest in (no guaranteed CPF-style interest); how they complement each other: a comprehensive Singapore retirement savings strategy typically uses BOTH: CPF for guaranteed, government-backed retirement income (especially via CPF LIFE annuity from RA); SRS for additional tax-advantaged savings with investment flexibility and growth potential; for tax optimization specifically: CPF cash top-ups (Retirement Sum Topping-Up Scheme) ALSO provide tax relief (up to S$16,000) — but this is a different relief category from SRS and operates through your CPF Special/Retirement Account, not SRS; both CPF RSTU and SRS contributions can be used together (within the overall S$80,000 relief cap) for maximum tax efficiency.

Funding sources for SRS contributions Singapore 2026: SRS contributions can be funded from ANY source of funds you have access to — there is no restriction on the SOURCE of the money used to contribute, only on the cap amount and tax relief eligibility; common funding sources: employment salary (most common — transfer from your bank account after receiving your monthly salary); annual bonus (popular timing — many Singaporeans contribute a portion of their year-end bonus to SRS before the 31 December deadline); savings from previous years (using accumulated savings, not necessarily current-year income); business profits (for self-employed individuals and business owners with Singapore tax residency); investment income or proceeds (e.g., from selling other investments, provided you have the cash available); gifts or inheritance (no restriction on using gifted funds, though be aware of any donor’s intent or tax implications in the donor’s jurisdiction if applicable); important clarification: SRS tax relief is based on your CHARGEABLE INCOME for the year, not on whether the SRS contribution itself came from “this year’s income”; even if you fund your SRS contribution entirely from savings accumulated in prior years, you still receive the full tax relief against your current year’s chargeable income (as long as you have sufficient chargeable income to offset — if your chargeable income is, say, S$10,000 and you contribute S$15,300 to SRS, the tax relief is capped by your actual taxable income, since you cannot have negative chargeable income for relief purposes, though the SRS account itself can still receive the full S$15,300 contribution); practical tip: many Singaporeans use a portion of their annual bonus (typically paid in December or early in the new year) specifically for SRS contribution, as this timing aligns well with the year-end SRS contribution deadline and doesn’t impact monthly cash flow.

SRS vs regular brokerage account for Singapore investors 2026: comparing the SAME S$15,300 invested via SRS vs a regular brokerage account reveals SRS’s key advantages and trade-offs: immediate tax benefit (SRS advantage): contributing S$15,300 to SRS at a 15% marginal rate saves approximately S$1,934 (effective rate, see calculation above) in tax THIS YEAR; investing S$15,300 in a regular brokerage account provides NO immediate tax benefit — you’ve already paid full tax on that S$15,300 of income; effectively, SRS gives you an instant “discount” on your investment, equivalent to investing with “free” bonus capital from the tax saved; investment universe (similar): both SRS and regular brokerage accounts in Singapore can access SGX stocks, S-REITs, ETFs, unit trusts — the investable universe is largely similar (though SRS may have slightly fewer options for certain specialized products); dividend/distribution tax treatment (similar for Singapore-sourced income): both SRS and regular accounts benefit from Singapore’s general non-taxation of capital gains and most dividend income for individuals; this similarity means the ANNUAL investment growth tax treatment is not dramatically different between SRS and regular accounts for typical SGX-listed S-REIT/equity investments; liquidity (regular brokerage advantage): funds in a regular brokerage account can be withdrawn anytime with no penalty; SRS funds withdrawn before statutory retirement age incur a 5% penalty PLUS full taxation of the withdrawn amount (not just 50%); withdrawal tax treatment (SRS advantage at retirement): SRS withdrawals AFTER statutory retirement age benefit from 50% tax-free treatment, spread over up to 10 years, which can result in very low or zero effective tax on withdrawal if structured well (see P195 calculator); a regular brokerage account has no special withdrawal tax treatment (though Singapore’s lack of capital gains tax already makes this less relevant); the verdict: for funds you don’t need before retirement age, SRS is almost always superior due to the immediate tax savings, UNLESS you have an extremely low marginal tax rate (where the tax savings are minimal) or anticipate needing the funds for a near-term major expense.

SRS statutory retirement age 2026: the “statutory retirement age” for SRS withdrawal purposes is NOT the same as the general re-employment age or CPF withdrawal age — it is fixed at the point you OPENED your SRS account, based on the prevailing statutory retirement age at that time; key historical context: for SRS accounts opened before 1 July 2022: statutory retirement age = 62; for SRS accounts opened after 1 July 2022: statutory retirement age = 63; effective 1 July 2026: the statutory retirement age increases to 64 (as part of Singapore’s broader retirement age progression); this affects NEW SRS accounts opened from 1 July 2026 onwards — they will use age 64 as the relevant statutory retirement age for the 50% tax-free withdrawal benefit; important: this is “locked in” at account opening — if you opened your SRS account in 2020 (statutory age 62 at that time), your SRS withdrawal age remains 62 even though the general statutory retirement age has since risen to 63 and will rise to 64; check your SRS account opening date and the applicable statutory retirement age that applies to you specifically via your SRS operator bank (DBS/OCBC/UOB) or IRAS; why this matters: withdrawals made FROM your statutory retirement age (as determined above) onward qualify for the 50% tax-free treatment over a 10-year withdrawal period; withdrawals made BEFORE this age (except in specific circumstances like terminal illness, death, or for foreigners leaving Singapore permanently) incur the 5% early withdrawal penalty plus full taxation; use the companion P195 SRS Withdrawal Tax Calculator to model your specific withdrawal strategy based on YOUR statutory retirement age.

How SRS tax relief is applied in Singapore 2026: SRS tax relief is AUTOMATICALLY pre-filled in your IRAS tax assessment based on data submitted by your SRS operator bank — you generally do NOT need to manually claim it; how the automation works: your SRS operator bank (DBS, OCBC, or UOB) reports your total SRS contributions for the calendar year directly to IRAS; this data is used to pre-fill the “SRS Relief” field in your annual income tax return (e-Filing via myTax Portal); for most taxpayers using the No-Filing Service (NFS) or standard e-Filing, the SRS relief amount should appear automatically when you log in to file your taxes (typically in March-April for the prior year’s income); verification steps: when filing your taxes via myTax Portal, navigate to the “Deductions” or “Reliefs” section; confirm the pre-filled SRS contribution amount matches what you actually contributed during the calendar year; if there’s a discrepancy (e.g., a late-December contribution not yet processed by your bank in time for IRAS’s data feed), you may need to manually adjust the figure or contact your SRS operator bank; common issues: timing mismatches — if you contributed in late December and your bank’s reporting to IRAS has a processing lag, ensure the contribution date falls within the correct calendar year and follow up with your bank if the relief doesn’t appear correctly; cap enforcement — IRAS’s system automatically caps the relief at S$15,300 (Citizen/PR) or S$35,700 (Foreigner) even if your actual contribution somehow exceeded this (which shouldn’t happen if your SRS operator bank enforces the cap at the point of contribution, as they are required to do); recommendation: always verify the SRS relief amount shown in your tax assessment against your own records (SRS account statements) before submitting your tax return, and keep records of your SRS contributions for at least 5 years in case of any IRAS query.

SRS for self-employed and business owners in Singapore 2026: yes — self-employed individuals, freelancers, sole proprietors, and business owners with Singapore tax residency are fully eligible to contribute to SRS and receive the same tax relief benefits as salaried employees; key considerations for self-employed SRS contributors: chargeable income calculation: self-employed individuals’ chargeable income is based on net business profit (after deducting allowable business expenses) rather than a fixed salary; this can be more variable year-to-year, making SRS contribution timing especially important; many self-employed individuals wait until closer to year-end (once their full-year business performance is clearer) before finalizing their SRS contribution amount; no employer CPF matching consideration: unlike employees who automatically have CPF contributed by their employer, self-employed individuals typically only have MediSave contribution obligations (mandatory) and voluntary CPF contributions (optional) — this means SRS may represent an even MORE significant proportion of their overall tax-advantaged retirement savings, since they lack the “automatic” employer CPF contribution that employees receive; income volatility planning: self-employed individuals with highly variable income (e.g., project-based consultants, business owners with seasonal revenue) should be cautious about over-committing to the full S$15,300 SRS contribution in a year when cash flow might become tight, since early SRS withdrawal carries penalties; year-end profit estimation: many self-employed individuals work with their accountant in Q4 to estimate full-year taxable profit, then calculate the optimal SRS contribution using a tool like this calculator to determine the precise tax savings before making the contribution decision; tax filing: self-employed individuals still receive the same automatic SRS relief pre-fill from their SRS operator bank when filing via myTax Portal, just as employees do — the relief mechanism is identical regardless of employment type.

SRS-eligible investment products in Singapore 2026: SRS accounts offer a notably broader investment universe than CPF Investment Scheme (CPFIS), making them attractive for active and passive investors alike: equities and REITs: SGX-listed stocks (DBS, OCBC, UOB, and other blue chips); Singapore REITs (S-REITs) — CICT, AREIT, MLT, MIT, ParkwayLife, and others; some SRS operators also allow selected foreign stocks (e.g., US-listed stocks via certain SRS-linked brokerage arrangements, though this varies by bank and platform); exchange-traded funds (ETFs): SGX-listed ETFs including Lion-Phillip S-REIT ETF, SPDR STI ETF, Nikko AM STI ETF, and various sector/regional ETFs; unit trusts and mutual funds: a wide range of unit trusts across equity, bond, balanced, and multi-asset categories, typically accessed via your SRS operator bank’s fund platform or through FSMOne (Fundsupermart) for SRS-linked accounts; fixed deposits: SRS funds can be placed in fixed deposits offered by the SRS operator banks, providing a low-risk, guaranteed-return option within the SRS wrapper; Singapore Government Securities (SGS) and Singapore Savings Bonds (SSB): some SRS platforms allow allocation to SGS bonds and SSBs for conservative SRS investors; insurance-linked products: certain endowment and investment-linked insurance products are SRS-eligible through approved insurers; what is generally NOT SRS-eligible: direct property investment (real estate) — SRS funds cannot be used to directly purchase physical property; certain alternative investments (private equity, hedge funds, cryptocurrency) are typically not available through standard SRS platforms; how to access these investments: contact your SRS operator bank (DBS, OCBC, or UOB) or use their integrated online trading platform; some banks partner with FSMOne or other platforms to provide broader fund access for SRS account holders; brokerage and platform fees for SRS-linked trading are generally similar to standard SGX brokerage rates (see the P192 SGX Lot Size Cost Calculator’s brokerage comparison for reference rates).

SRS relief and foreign-sourced income for Singapore tax residents 2026: Singapore’s tax system generally exempts most foreign-sourced income from tax for individuals (subject to specific conditions and exceptions, primarily relevant to certain types of income received in Singapore from abroad); how this interacts with SRS relief: SRS relief is calculated against your TOTAL CHARGEABLE INCOME, which is your Singapore-assessable income after applicable exemptions and reliefs; if a significant portion of your income is foreign-sourced and exempt from Singapore tax (e.g., overseas rental income, certain foreign employment income under specific exemption schemes), this exempt income generally does NOT form part of your chargeable income, and therefore SRS contributions would only provide tax relief against your SINGAPORE-TAXABLE chargeable income; practical implication: if you have substantial foreign-sourced exempt income alongside modest Singapore-taxable income, your SRS contribution’s tax-saving benefit is calculated only against the Singapore-taxable portion — entering your full worldwide income into this calculator (rather than just your Singapore chargeable income) would OVERSTATE your actual tax savings; correct approach: always use your SINGAPORE CHARGEABLE INCOME (as it would appear on your Notice of Assessment, after any foreign income exemptions already applied) as the income figure in this calculator, not your total worldwide income; for Singapore tax residents working partly overseas (e.g., regional roles requiring travel) — your Singapore employment income is generally fully taxable in Singapore (subject to specific double-tax treaty considerations and exemptions like the Not Ordinarily Resident scheme, which has its own specific rules); if you have complex cross-border income situations, consult a qualified Singapore tax advisor to determine your precise chargeable income before using this calculator for SRS planning purposes.

SRS contributions and means-tested Singapore government schemes 2026: SRS contributions reduce your CHARGEABLE INCOME (the figure used for income tax calculation), but this is generally DIFFERENT from the “household income” or “per capita income” metrics used for many Singapore government means-tested schemes and subsidies; important distinction: many Singapore subsidy schemes (e.g., childcare subsidies, school fee assistance, healthcare subsidies, HDB housing grants) use GROSS MONTHLY INCOME or ASSESSABLE INCOME (which may be calculated differently from chargeable income, often BEFORE personal reliefs like SRS are deducted) as the eligibility criterion; this means: contributing to SRS to reduce your INCOME TAX chargeable income does NOT typically reduce your gross income for the purposes of most subsidy means-testing, since these schemes usually look at a different (often pre-relief) income figure; specific schemes to verify individually: HDB housing grants (e.g., Enhanced CPF Housing Grant): typically use gross monthly household income, not post-SRS chargeable income; childcare subsidies: based on gross monthly household income; Workfare Income Supplement (WIS): based on gross monthly income and other eligibility criteria, not chargeable income after reliefs; CDC vouchers, GST Voucher scheme: typically based on Annual Value of property and income criteria using gross/assessable income definitions that generally do NOT account for personal reliefs like SRS; the key takeaway: do not assume that SRS contributions will help you qualify for income-based subsidies or grants — these schemes almost universally use gross or assessable income BEFORE personal reliefs, specifically to prevent exactly this kind of “income reduction” strategy from being used to game means-tested benefits; SRS should be evaluated purely on its income TAX savings and retirement investment merits, not as a strategy to qualify for other government assistance programs; always verify the specific income definition used by any scheme you’re considering on the relevant government agency’s website (HDB, ECDA, MSF, etc.).

SRS vs CPF RSTU (Retirement Sum Topping-Up Scheme) for Singapore tax relief 2026: both schemes offer tax relief but operate very differently: SRS (Supplementary Retirement Scheme): annual cap S$15,300 (Citizen/PR) or S$35,700 (Foreigner); funds held in a separate SRS account, NOT inside CPF; broad investment options (stocks, S-REITs, ETFs, unit trusts, fixed deposits); accessible (with penalty) before retirement age; withdrawal at statutory retirement age: 50% tax-free over up to 10 years; CPF RSTU (cash top-up to Special Account/Retirement Account): annual relief cap S$8,000 for self top-up + S$8,000 for top-ups to family members’ CPF SA/RA = up to S$16,000 combined relief; funds go into your (or family member’s) CPF Special Account (if below 55) or Retirement Account (if 55+); funds are LOCKED into the CPF system, earning CPF interest rates (4%+ on SA, up to 6% on first S$60,000 combined with extra interest); generally cannot be withdrawn in cash until CPF withdrawal age and even then mostly converts to CPF LIFE annuity payouts; CPF Special Account investment options are very limited (mostly fixed CPF interest rate, with CPFIS-SA offering limited investment choices for amounts above S$40,000 in SA, subject to eligibility); key decision factors: liquidity: SRS offers more flexibility (accessible with penalty) vs CPF RSTU (essentially locked until much later life stages); investment control: SRS offers significantly broader investment options vs CPF RSTU’s largely fixed-interest, limited-investment structure; guaranteed return: CPF RSTU offers guaranteed 4%+ interest with zero market risk vs SRS where returns depend entirely on your investment choices; combined cap: both can be used together within the overall S$80,000 personal relief cap — for high earners, maximising BOTH SRS (S$15,300) and CPF RSTU (S$16,000 combined self+family) provides up to S$31,300 in combined annual tax relief opportunity, assuming sufficient chargeable income and relief cap headroom.