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Roth IRA Calculator

Project Roth IRA contributions and growth with an entered net return, then compare the annual deposit plan with a verified IRA contribution limit.

Use this result well

Inputs that matter
Current Roth IRA balance, equal planned monthly contribution, whole projection years, an entered annual net-return scenario, and an externally verified annual IRA contribution limit
Output to expect
Planned annual contribution, amount above the entered limit, future contributions, modeled growth, and modeled ending balance
How it works
Equal end-of-month future-value arithmetic plus a narrow annual contribution-versus-entered-limit screen; no contribution eligibility or distribution treatment is selected
  • Verify taxable compensation, MAGI, filing status, age/catch-up eligibility, the current-year limit, and all traditional/Roth IRA contributions before acting.
  • Investment returns can vary or be negative; confirm fees, holdings, deadlines, excess-contribution correction, basis, conversion/rollover records, and qualified-distribution rules separately.

Choose your path

Built around the job you need to finish

Project equal month-end Roth IRA contributions and compare their annual amount with an externally verified limit without deciding contribution eligibility, tax treatment, or retirement readiness.

Worker planning current-year deposits

Translate a monthly deposit plan into an annual amount and compare it with the verified personal limit.

Confirm current compensation/MAGI/filing/other-IRA facts externally, enter the applicable limit and monthly plan, then inspect any excess.

Can adjust the deposit schedule without treating the general IRS dollar limit as personal eligibility.

Long-horizon saver testing assumptions

See deterministic contribution and growth arithmetic without a guaranteed-return promise.

Enter the statement balance, whole horizon, and a net-return scenario after fees; compare alternative documented scenarios separately.

Can reconcile deposits and modeled growth while recognizing losses, fees, and actual returns remain uncertain.

Owner reviewing a future distribution

Avoid treating projected Roth balance as automatically tax-free to withdraw.

Use the balance model only, then review Publication 590-B for ordering, five-year, age/exception, rollover/conversion, and reporting facts.

Does not use the projection as a qualified-distribution or tax conclusion.

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Reference & details

How it works

Screen the Annual Deposit Plan

Monthly contribution is multiplied by 12 and compared with the entered annual IRA limit. The general IRS limit is not personal eligibility: taxable compensation, MAGI, filing status, age, and contributions to every traditional and Roth IRA can change the usable amount.

Planned annual contribution = monthly contribution × 12

Project Equal Month-End Deposits

The current balance and equal monthly deposits are compounded at the entered annual net-return scenario for a whole-year horizon. The return is an assumption after fees, not a forecast or guarantee.

FV = current × (1+r)^n + monthly × ((1+r)^n − 1) ÷ r

Keep Tax Treatment Outside the Balance Model

Publication 590-A controls contribution rules and Publication 590-B controls distributions. A Roth label does not make every withdrawal tax-free; ordering, five-year, age or exception, rollover, conversion, beneficiary, and reporting facts matter.

Balance projection ≠ contribution eligibility or qualified-distribution decision

Updated: August 2026

Example Scenarios

Model $625 equal monthly deposits and compare the $7,500 annual plan with a separately verified entered limit.

Current Balance: $15,000Monthly Contribution: $625Projection: 30 yearsEntered Net Return: 6%Entered Annual Limit: $7,500

Shows annual contribution, amount above entered limit, total future deposits, modeled growth, and ending balance without deciding eligibility.

Raise the monthly plan while leaving the externally verified limit unchanged.

Monthly Contribution: $700Entered Annual Limit: $7,500

Shows $8,400 planned annually and $900 above the entered limit; it does not diagnose or correct an excess contribution.

Use a negative net return to see that the tool preserves downside assumptions instead of promising growth.

Entered Net Return: -5%Projection: 5 years

Reports signed modeled growth and the deterministic ending balance with no investment or retirement recommendation.

FAQ

The IRS lists a $7,500 general IRA limit for 2026 and a $1,100 catch-up for an eligible person age 50 or older. Your usable Roth amount can be lower because compensation, MAGI, filing status, and contributions to other traditional or Roth IRAs must be coordinated. Enter the limit verified for your facts.

No. The screen compares two entered numbers only. Publication 590-A and current IRS worksheets determine eligibility and the personal contribution limit.

No. It assumes one constant annual net return and equal end-of-month deposits. Actual holdings, fees, taxes, contribution timing, and market returns can differ, including losses.

No. Qualified distributions and returns of regular contributions have specific treatment, while other distributions can involve ordering rules, income inclusion, or additional tax. Review current Publication 590-B and your records.

No. Conversions, rollovers, recharacterizations, basis, excess corrections, deadlines, and reporting require separate current analysis.

About Roth IRA Calculator

This tool models equal end-of-month contributions and one entered constant net return. It also compares the planned annual deposit with the annual IRA limit you enter. It does not determine whether you are eligible to contribute, how much your personal limit is, whether a contribution is excess, or whether a future distribution is qualified or tax-free.