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Income Tax & Personal Assets Tax advances
After filing the annual return, a second schedule kicks in: five bimonthly advance payments that pre-pay the current year's tax. Here's how each installment is calculated.
Updated as of August 20, 2026
In short
- 5 bimonthly advance payments of 20% each, based on the tax determined in the last annual return.
- Usual schedule: August, October, and December, plus February and April of the following year.
- Reconciled against the following year's annual return, as a credit or an amount still owed.
The starting point
The annual return
Individuals and undivided estates file their income tax and Personal Assets Tax returns for the prior fiscal year every year, typically due in June, staggered by CUIT ending. The tax resulting from that return becomes the base for calculating the following year's advance payments.
Through the year
Five advances, every two months
Both income tax and Personal Assets Tax are pre-paid during the current year, in 5 bimonthly installments of 20% each — adding up to 100% of the tax determined the prior year.
The base is the tax determined (income tax and Personal Assets Tax, each separately) in the last return filed — not an estimate of the current year. That's why the first installment can be calculated as soon as the return is filed.
The usual schedule runs through August, October, and December of the current year, and February and April of the following year — with each installment's exact date staggered by CUIT ending, like most other obligations.
If an individual installment doesn't exceed the minimum ARCA sets (usually $5,000), it doesn't need to be paid — but that doesn't waive the obligation for later installments that do exceed it.
What was paid in advances is credited against the tax determined by the next annual return. If the advances exceeded the final tax, the balance is left as a credit; if they fell short, the difference is paid when filing the return.
If you missed the date
Missing an advance also accrues interest
Each missed, unpaid advance payment independently accrues ARCA's late-payment interest, from its own due date until it's paid or offset against the annual return.
Frequently Asked Questions
Why 5 advance payments instead of monthly installments?
It's the schedule ARCA sets by general resolution for the advance-payment regime for individuals: five 20% installments, bimonthly, completing 100% of the prior period's tax before the next annual return is due.
If my income dropped this year, can I pay smaller advances?
There's an optional advance-reduction regime available when you estimate the current year's tax will be lower than the prior year's, subject to conditions and with the risk of surcharges if the estimate turns out wrong. It's a technical decision worth reviewing with professional advice before applying it.
Do Personal Assets Tax and income tax share the same advance-payment schedule?
They follow the same 5-installment, 20%-per-advance logic, generally in the same months of the year, but each tax is assessed and paid separately — they're two different obligations that happen to share a calendar.
What happens if the final tax turns out lower than what I paid in advances?
The credit balance stays available to offset against next year's tax, or against other national taxes under the applicable offset rules. It isn't lost, but it also isn't automatically refunded in cash.
Where do I find the exact date of each advance payment?
Here we explain the general structure of the regime. Each advance's exact date and CUIT staggering are confirmed by ARCA resolution, and we publish them on our blog as they approach.
Want to get ahead of income tax or Personal Assets Tax?
We project your advance payments, evaluate whether a reduction makes sense, and handle your annual filing.