IRA Calculator
Calculate compound growth for Traditional and Roth Individual Retirement Accounts. Compare upfront tax deductions versus tax free retirement withdrawals, evaluate lifetime wealth accumulation, and plan optimal contribution strategies.
IRA Inputs
You are in a higher tax bracket now than in retirement. A Traditional IRA provides valuable tax savings today.
Because your tax rate is higher today (24%) than in retirement (20%), deducting contributions now saves you $1,680 per year in immediate taxes.
IRA Growth Over Time: Deposits vs Earnings
Assumed 7.5% returnYear by Year Retirement Schedule
| Year | Age | Deposited | Earnings | Gross Total | Roth Net | Traditional Net |
|---|---|---|---|---|---|---|
| Yr 1 | 33 | $32,000 | $2,400 | $34,400 | $34,400 | $27,520 |
| Yr 2 | 34 | $39,000 | $3,105 | $44,505 | $44,505 | $35,604 |
| Yr 3 | 35 | $46,000 | $3,863 | $55,368 | $55,368 | $44,294 |
| Yr 4 | 36 | $53,000 | $4,678 | $67,045 | $67,045 | $53,636 |
| Yr 5 | 37 | $60,000 | $5,553 | $79,599 | $79,599 | $63,679 |
| Yr 6 | 38 | $67,000 | $6,495 | $93,094 | $93,094 | $74,475 |
| Yr 7 | 39 | $74,000 | $7,507 | $107,601 | $107,601 | $86,081 |
| Yr 8 | 40 | $81,000 | $8,595 | $123,196 | $123,196 | $98,557 |
| Yr 9 | 41 | $88,000 | $9,765 | $139,961 | $139,961 | $111,968 |
| Yr 10 | 42 | $95,000 | $11,022 | $157,983 | $157,983 | $126,386 |
| Yr 11 | 43 | $102,000 | $12,374 | $177,356 | $177,356 | $141,885 |
| Yr 12 | 44 | $109,000 | $13,827 | $198,183 | $198,183 | $158,546 |
| Yr 13 | 45 | $116,000 | $15,389 | $220,572 | $220,572 | $176,457 |
| Yr 14 | 46 | $123,000 | $17,068 | $244,640 | $244,640 | $195,712 |
| Yr 15 | 47 | $130,000 | $18,873 | $270,513 | $270,513 | $216,410 |
Traditional IRA vs Roth IRA: Core Distinctions
Individual Retirement Accounts are powerful wealth building vehicles designed to incentivize long term investing through federal tax advantages. The two primary categories, Traditional and Roth, provide distinct tax timing benefits:
| Feature | Traditional IRA | Roth IRA |
|---|---|---|
| Contribution Tax Status | Pre tax or tax deductible | After tax dollars |
| Upfront Tax Break | Yes (reduces current year taxable income) | No immediate tax deduction |
| Investment Growth | Tax deferred (no annual capital gains or dividend taxes) | 100% tax free compound growth |
| Retirement Withdrawals | Taxed as ordinary income | 100% tax free (principal and gains) |
| Early Contribution Access | Taxes plus 10% penalty prior to age 59½ | Contributions can be withdrawn penalty free anytime |
| Required Minimum Distributions (RMDs) | Mandatory starting at age 73 (SECURE 2.0) | None during original owner lifetime |
Annual Contribution Limits and Catch Up Rules
The IRS establishes annual contribution caps for individual retirement accounts, indexed periodically to inflation:
You can allocate your $7,000 maximum across a Traditional IRA, a Roth IRA, or split between both, provided your total combined contributions do not exceed $7,000 or your total taxable compensation.
The tax code grants an additional $1,000 annual catch up allowance for savers aged 50 or older, allowing accelerated wealth accumulation in the critical years leading up to retirement.
Tax Bracket Arbitrage: Which Option Generates More Wealth?
The decision to prioritize a Traditional or Roth IRA hinges on tax rate arbitrage:
When Traditional IRA Wins
If your current marginal tax bracket is higher than your anticipated tax bracket in retirement, contributing pre tax dollars provides substantial immediate tax relief. For example, deducting $7,000 at a 32% tax rate yields $2,240 in immediate tax savings today.
When Roth IRA Wins
If you are early in your career or expect your retirement income to push you into a higher tax bracket, paying taxes now at lower rates is advantageous. Decades of compound growth remain completely insulated from future legislative tax increases.
Cross Border US and Canada Retirement Account Rules
Many Canadian residents and dual citizens maintain US retirement accounts after living or working south of the border. Cross border tax planning requires understanding how both the CRA and the IRS treat these assets:
- CRA Treatment of Traditional IRAs: The Canada Revenue Agency recognizes Traditional IRAs as tax deferred pensions under Article XVIII of the Canada US Tax Treaty. Withdrawals are taxed as income in Canada, with a 15% US withholding tax that qualifies for a Foreign Tax Credit on Canadian tax returns.
- Roth IRA One Time Treaty Election: Canada does not automatically treat foreign accounts as tax free. Under the tax treaty, a Canadian resident holding a Roth IRA must file a timely one time election with the CRA to retain tax free growth in Canada, provided no new contributions are made while residing in Canada.
- Comparison to Canadian RRSPs and TFSAs: Traditional IRAs operate similarly to Canadian RRSPs (pre tax contributions, taxable withdrawals). Roth IRAs mirror Canadian TFSAs (after tax contributions, 100% tax free growth and withdrawals).
The Backdoor Roth Strategy for High Earners
The IRS imposes income phase out limits on direct Roth IRA contributions. For earners above these income thresholds, the Backdoor Roth IRA provides a compliant pathway:
- Open and fund a Traditional IRA with a non deductible contribution.
- Once the funds settle, execute a conversion of the balance into a Roth IRA.
- Report the non deductible contribution on IRS Form 8606 with your tax return.
- Be cautious of the IRS Pro Rata Rule if you hold other pre tax Traditional IRA balances.
Frequently Asked Questions
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