Boathouse works out both Philadelphia returns - the BIRT on receipts and net income, the Net Profits Tax with 60% of the BIRT net-income portion credited against it - puts them on April 15 with the estimates that follow, and will not call either filed without a confirmation number.
Opens in this browser with an invented creator already in it. No account, no email address, nothing installed. Never holds a tax return, a Tax Center login, a bank login or a Social Security number.
The problem
Until tax year 2024 the first $100,000 of receipts was exempt from BIRT. From tax year 2025 every business files - and an unincorporated one files the Net Profits Tax as well, with a credit between the two that is easy to miss.
Not a reminder. Filed refuses while the year's figures or rates are missing, a date inside the tax year, or no Tax Center confirmation number - and the NPT waits until that year's BIRT is filed, because its credit comes from it. A payment needs its confirmation number. Nothing is deleted. There is no override.
How it works
Philadelphia receipts, net income and net profits.
BIRT, the NPT, and the credit between them.
BIRT first, then the NPT, then the estimates - each with its confirmation number.
What it will never do
Boathouse holds figures, dates and confirmation numbers, nothing more.
Pricing
For one business.
Both returns, every year.
Monthly. Your bank statement says Boathouse Software. Your licence key is on your screen as soon as the payment confirms.
Pay by card through Square, on Square’s own checkout page — we never see or store your card number. Or pay with bitcoin through our own bitcoin server. Either way you come back here, type your business name, and your licence key is on the screen — no email, no waiting on us.
Questions
Yes. From tax year 2025 the City no longer exempts the first $100,000 - every business files BIRT.
Partly, which is why 60% of the BIRT net-income portion is credited against the Net Profits Tax. Boathouse takes it for you.
Non-residents pay NPT on profits earned in Philadelphia, at 3.43% for 2025.
No. It is the arithmetic, the record and the gates.
The demo on this page is the whole program, running on invented records. Paying gets you a licence key — one line of text, on your screen as soon as the payment confirms: the checkout brings you back to our thank-you page, you type your business name and the key appears. Paste it into the program and from then on it keeps your own records. Until then, nothing you type into it is kept.
The key is checked inside the page, on your own machine. It never calls us, so there is still no account and nothing about your business goes anywhere. If you ever stop paying, your records stay exactly where they are, read-only, and Export still hands you every one of them.
An invented creator's $1,944.80 Net Profits Tax comes down to $163.28 once the BIRT credit is taken.