← All work
SaaS startup · Software for tax offices

Building the software a tax office runs on

Seasonly is software for small tax and accounting offices. It asks clients for their documents, chases what's missing and moves every return through review, signature, payment and release. Here the job goes beyond a website: we're designing and building the software itself, the office workspace and the client portal for phones, plus the website.

In progress
↗
112

automated tests that check the filing rules and screens on every change.

2

sides that update each other live: when a client uploads a document on the phone, the office sees it right away.

6

stages every return moves through, from the first document request to release.

5

business types with their own forms and deadlines, from sole proprietors to C corporations.

Counted in the working prototype on October 27, 2026. The product is still in development, so there are no launch results yet.

Seasonly's office workspace in the working prototype, with sample data
Seasonly had no software before
Before
After

Drag the line to compare

What changed

BeforeAfter
Starting point
A plan and a long list of what tax offices need
A working prototype
The season
Every step had to be covered, from asking for documents to release
Six stages for every return, on one board
Clients
It had to work on a phone, with no app to install
A client portal: snap a photo, sign and pay
Office and clients
Two sides that needed to stay in step
One system: the office sees an upload right away

What we did

  • Research first

    10 competitors' sites and pricing reviewed before designing a single screen.

  • A map of the first version

    71 things the office, its clients and the system need to do.

  • The office workspace

    The season at a glance, a six-stage board, review and approval, invoices with partial payments, and release.

  • The client portal

    Sign in with a code, snap a photo of a document, sign the engagement letter and pay.

  • Filing rules

    Five business types, with IRS and Florida deadlines and weekend and holiday shifts.

  • The website

    Eight pages, with pricing, a security page and a free 1040 tax organizer.

The result

A working prototype: the office workspace and the client portal run on one system and update each other live.

The next step is a pilot with the first tax offices. Once they're using it, this page will show the numbers.

Seasonly's client portal on a phone, with documents to upload and a letter to sign

Project facts

Project
Seasonly
Industry
Software · Tax and accounting
Location
Miami, FL
Timeline
Since October 2026, in development
Status
In progress
Alex ZhyzhkoAlesia ZhyzhkoDima

Want your own before and after?

Send us your website and we'll reply within one business day with the three things we'd fix first. Free, no call needed.

Send us your website