Get your INTIME letters and balances through an API

What you can build on INTIME

• Get returns, balances and payments

  Build this

  Reads Manage Payments & Returns on the Payments & Returns panel for one tax account: each period's return, balance and payments.

  Takes

  Client (for practitioners), tax account, show returns, balances or payments, periods

  Returns

  Tax account, period, return status, due date, balance, payment date, payment amount

• Check what requires attention

  Build this

  Reads the Requires Attention tab: upcoming filing dates, upcoming or overdue payments and unread correspondence from DOR.

  Takes

  Client (optional, for practitioners)

  Returns

  Alert type, tax account, period, due date, amount, letter ID

• Get letters from DOR

  Build this

  Reads View Letters on the All Actions tab: the letters, notices and bills DOR has sent, including the Registered Retail Merchant Certificate.

  Takes

  Client (optional), sent since (optional)

  Returns

  Letter ID, letter title, date, tax account, read or unread

• Respond to a letter, notice or bill

  Build this

  Uses Respond to a letter, notice, or bill under Letters: enters the letter ID, writes the response, adds an attachment if given and submits it.

  Takes

  Client (optional), letter ID, response text, attachment (optional)

  Returns

  Letter ID, submitted at, confirmation

Automate INTIME with a workflow

A workflow runs your methods as one process, with nobody at the screen. A schedule or a call from your own system starts it, the steps run in order, and the result arrives in your inbox or in the systems you already use.

• New DOR letters and overdue items, every client

  Build this

  Starts

  Every weekday at 7:00

  Step 1

  For each client on your list, check what requires attention in INTIME.

  Step 2

  Keep the alerts that were not there on the last run.

  Step 3

  Email you the new alerts, one section per client, with letter IDs and amounts.

• Sales and withholding periods still to file

  Build this

  Starts

  Every month on the 15th at 8:00

  Step 1

  For each client, get the returns for the Sales and Withholding accounts in the current period.

  Step 2

  Keep the periods with no return filed yet, including periods with nothing due.

  Step 3

  Email you the list with each period's due date.

• Account balances, posted to your accounting system

  Build this

  Starts

  Every Monday at 9:00

  Step 1

  For each client and tax account, get the balances by period.

  Step 2

  Keep the balances that changed since the last run.

  Step 3

  Post client, tax account, period and balance to your webhook.

You can run a workflow by hand on every plan, Free included. Schedules and webhook triggers come with the paid plans, from $29 a month.

Once built, one call from your code

Once you have built a method, it is one POST to /v1/runs from your backend, or a tool an AI agent calls over MCP. This is what “Get returns, balances and payments” would look like.

curl https://api.fous.com/v1/runs \
  -H "Authorization: Bearer $FOUS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "method": "intime.dor.in.gov/get_returns_balances_and_payments",
    "input": {
      "client": "Acme Hardware LLC",
      "tax_account": "Withholding",
      "show": "returns",
      "periods": "past"
    }
  }'

{
  "status": "completed",
  "data": {
    "client": "Acme Hardware LLC",
    "tax_account": "Withholding",
    "periods": [
      {
        "period": "2026-10",
        "return_status": "Not filed",
        "due_date": "2026-11-30",
        "balance": 0,
        "payment_date": null,
        "payment_amount": null
      }
    ],
    "count": 1
  }
}

An example with invented data, not a ready-made endpoint. The method exists in your organization once you build it, and its name, inputs and fields follow your request.

INTIME’s own options

DOR's electronic options are for filing returns, not for reading your account. INTIME takes bulk withholding, alcohol, tobacco, fuel and motor vehicle rental files under 10 MB, larger files go by SFTP, and SST sellers can file through a Certified Service Provider. Letters, alerts, balances and payment history are on INTIME's own screens.

Read on November 12, 2026: INTIME Guide for Business Tax Customers, Bulk filing, INTIME Guide to Withholding Taxes.

Signing in to INTIME

INTIME signs you in with a username and password, then asks for a security code at every login, sent by email, by text message or from an authenticator app. Each person has their own username. With Fous you sign in once through INTIME's own sign-in with your own account: the login is sealed with AES-256, the code is handled when it comes by email, and an expired session is signed back in.

Worth knowing

Access depends on the login

The first user is the Master Logon and can create other users with limited access. A View Only login sees returns but cannot file or pay, so a method can do only what its login allows.

Each practitioner needs their own ePOA

Clients appear on a practitioner's client list once the client approves an ePOA request. Each member of a practitioner's team requests ePOA access to their own client accounts.

File even when nothing is due

You must file a return for every period, even with no tax due, or DOR issues a bill based on the best information available. DOR reviews filing frequency every year, so due dates can change.

Answer letters with the letter ID

DOR asks you to use Respond to a letter, notice, or bill, not Send a Message, for questions about correspondence. The letter ID is in the upper right corner of each letter.

More in Government: US state and local tax

• Ohio Business Gateway
• MyFTB
• CDTFA Online Services
• Colorado Revenue Online
• Florida DOR eServices File and Pay
• Georgia Tax Center
• LaTAP
• Maryland Tax Connect
• MassTaxConnect
• Michigan Treasury Online
• Minnesota e-Services
• My DOR
• myconneCT
• MyDORWAY
• myPATH
• MyTax Illinois
• MyTaxes Kentucky
• NCDOR eBusiness Center
• New Jersey Tax Portal
• NY Business Online Services
• OH|TAX eServices
• Texas Comptroller Webfile
• TNTAP
• Virginia Tax Business Online Services
• Wisconsin My Tax Account

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