Taxes, without the panic

TFSA Contribution Room Calculator: Know Your Real Room for 2026

KOLLAZ · Updated October 1, 2026

Updated October 2026.

Educational information, not tax advice. Confirm current figures at canada.ca or with a tax professional before you contribute.

How much can you still put into your TFSA this year without triggering a penalty? The answer is one number: your available contribution room. A TFSA contribution room calculator runs simple math on your own records. Take this year's $7,000 limit. Add unused room from earlier years. Add anything you withdrew in 2025. Subtract what you have already contributed in 2026. Whatever is left is what you can safely contribute today.

Getting this number wrong is expensive. Over-contribute and the CRA charges a tax of 1% per month on the excess for every month it sits in your account. On a $2,000 excess, that is $20 a month. Leave it four months and you owe $80. This article shows you how to compute your real room in four steps, flags the withdrawal trap behind most penalties, and walks through the penalty math in real dollars.

How does a TFSA contribution room calculator work: the 4-step check?

The CRA publishes the exact formula for your room. It has four lines:

1. This year's dollar limit. The 2026 TFSA dollar limit is $7,000, added to your room on January 1, 2026.
2. Plus unused room from previous years. Every year's limit you did not use carries forward. There is no expiry date.
3. Plus withdrawals you made in 2025. A withdrawal returns as new room on January 1 of the following year. Not the day you withdraw. January 1.
4. Minus contributions you have already made in 2026. A contribution eats room the moment it lands, even though your CRA account will not show it for months.

Run those four lines and you have your room today. Here is a small example. Say you had $6,000 of unused room at the end of 2025, withdrew $4,000 in 2025, and have contributed $1,000 so far in 2026. Your room is $6,000 + $4,000 + $7,000 − $1,000 = $16,000.

Verdict: your own dated records beat CRA My Account as the authority on your room. The CRA updates your TFSA information only once a year in the spring, after issuers report the previous year's transactions. Issuers have until the end of February to send those in. The CRA says it plainly: calculate from your own financial records, not from the number in your CRA account.

TFSA annual limits, 2009 to 2026

Someone who was 18 or older in 2009, stayed a Canadian resident, and never contributed has $109,000 of total room in 2026. Your own total depends on when you became eligible and how much you have used.

What is the withdrawal trap behind most penalties?

Here is the mistake that fills CRA mailrooms. You withdraw $5,000 from your TFSA in March to cover an emergency. In October you put the $5,000 back. That re-contribution counts as a brand-new contribution. But the room from the March withdrawal does not return until January 1 of next year. If you had no spare room sitting there, you are now over-contributed, and the 1% monthly tax starts ticking.

The CRA's own worked example shows how the timing goes wrong. A contributor checked her CRA account on January 1 and saw room that did not yet reflect last year's transactions. She contributed based on that number and landed $4,000 over the limit. Her bank simply had not sent the CRA the numbers yet. Your records are the only ones that are current.

Two more traps worth knowing. Moving money between TFSAs at different banks by withdrawing and re-depositing counts as a withdrawal plus a new contribution. A direct transfer arranged by the institutions does not touch your room at all. And holding several TFSAs does not multiply your room. The limit applies to the total across every account you hold.

What is the over-contribution penalty, in real dollars?

The rule is short: the CRA taxes the highest excess amount in each month at 1% per month until the excess is gone. A partial withdrawal halfway through the month does not shrink that month's bill.

Take the CRA's own example. You over-contribute $2,000 in June and remove it in September. You owe $20 for June, $20 for July, $20 for August, and $20 for September. That is $80 total. Remove it in June itself and you still owe $20 for that one month.

Now the nuance most people miss. Say you over-contribute $6,000 in August, then withdraw $4,000 in mid-September. You still owe $60 for August and $60 for September, $120 total, because the tax hits the highest excess in each month, not the month-end balance. Withdraw the remaining $2,000 in October and you owe $20 more.

Two practical notes. First, a ledger that flags over-contributions on month-end balances is showing you a floor, not the bill. If the excess peaked mid-month, the CRA taxes the peak. Check mid-month peaks yourself. Second, fixing the excess does not end the paperwork. You must still report it by filing a TFSA Return, due by June 30 of the following year.

How are RRSP and FHSA the same in discipline but different in rules?

The TFSA is the account people over-contribute most. But the same discipline, know your room before you move money, applies to the other two registered accounts.

RRSP. Your room is 18% of last year's earned income, capped at $33,810 for 2026, minus any pension adjustment, plus unused room carried forward. The CRA gives you a $2,000 lifetime buffer. Go over your deduction limit by more than $2,000 and the same 1%-per-month tax applies. One timing quirk: contributions made in the first 60 days of the year can be claimed against the previous tax year, which is why January and February contributions get double-counted so often.

FHSA. The first-home savings account gives you $8,000 of new room per year, up to a $40,000 lifetime cap. Unused FHSA room carries forward, but only up to $8,000 of it. And your room only starts counting in the year you open the account.

If you are weighing which account deserves your next dollar, our RRSP vs TFSA breakdown for 2026 walks through the decision with the real limits for both.

Why should you stop doing the four-step check by hand?

The math above is simple. Doing it every month, across three accounts, from scattered bank statements, is where people slip. If you would rather not run the check by hand, the TFSA Contribution Room Tracker keeps your TFSA, RRSP, and FHSA room in one ledger. You log contributions with dates. The formulas compute your available room, and the Penalty Watch tab flags over-contributions month by month before they become CRA letters. It works in Excel and Google Sheets, and it ships with the 2009–2026 limits pre-loaded so you never have to look them up again.

About Kollaz, Kollaz makes smart financial tools for modern money. This article's companion is the TFSA Contribution Room Tracker spreadsheet, one ledger for your TFSA, RRSP, and FHSA room, with automatic penalty flags that warn you before you over-contribute.

Sources

• Canada Revenue Agency, Calculate your TFSA contribution room (canada.ca, verified live 2026-10-01), substantiates the 2026 $7,000 limit, the four-line room formula, the January-1 withdrawal rule, and the CRA-account reporting lag: canada.ca
• Canada Revenue Agency, If you over-contribute to a TFSA (canada.ca, verified live 2026-10-01), substantiates the 1%-per-month excess tax, the withdraw-as-soon-as-possible advice, and the TFSA Return filing requirement: canada.ca
• Canada Revenue Agency, If you owe tax on excess TFSA amounts (canada.ca, verified live 2026-10-01), substantiates that the tax applies to the highest excess in each month and provides the $2,000/$80 and $6,000/$120 worked examples: canada.ca
• Canada Revenue Agency, Excess Contributions (RRSP, PRPP and SPP) (canada.ca, verified live 2026-10-01), substantiates the $2,000 RRSP buffer, the 1%-per-month RRSP excess tax, and the first-60-days timing note: canada.ca
• MoneySense, TFSA contribution room calculator (moneysense.ca, verified live 2026-10-01), substantiates the 2026 $7,000 annual limit, the $109,000 cumulative maximum for those eligible since 2009, and the year-by-year limit table: moneysense.ca