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Tax Calculations apps and integrations

Tax Calculations apps help estimate federal, state, income, National Insurance, and social-contribution taxes, then show take-home pay, refunds, amounts owed, and payroll outcomes. Listings also cover tax documents, 1040 PDFs, filing options, deductions, VAT, deadlines, payments on account, and receipt categorisation for tax returns.

13 apps

Top tax calculations apps

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Finance
SpecterSystems.io

SpecterSystems.io

By Specter Systems

Specter Systems helps merchants and brokers complete business financing intake, upload bank statements and supporting documents, and track financing applications. Authenticated Specter users can review their own recent applications, facilities, lender submissions, and offer status.

Tools: 16 · Prompts: 1

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Finance
REPSLog

REPSLog

By CarmelTech LLC

REPSLog helps real estate professionals log and review the work hours that count toward Real Estate Professional Status (REPS) for U.S. tax purposes. Connect your REPSLog account and you can add a time log in plain language (for example, "log 2 hours showing the Oak Street property today"), then ask for your hours back by property, category, participant, or date range. The connector can create a time log and read your existing data: list your properties, categories, and participants, pull individual logs, and get summaries of total hours. Everything is scoped to your own authenticated REPSLog account. It does not access or share other users' data. Requires a REPSLog account with an active Premium subscription. That subscription is purchased separately in the standalone REPSLog mobile and web apps, not through ChatGPT. Logs created here sync to those apps, so your records stay in one place for IRS documentation.

Tools: 14 · Prompts: 4

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Finance
Voder

Voder

By Windy Road Technology Pty Ltd

Ask your AI about your Xero numbers. Has a customer paid you. Who owes you money. Your cash position. What's outstanding. All in plain language, without opening Xero. Read-only: Voder looks, never touches.

Tools: 13

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Financial-Services
Aiwyn Tax (formerly Column Tax)

Aiwyn Tax (formerly Column Tax)

By Aiwyn, Inc.

Estimate your federal & state taxes using Aiwyn's tax engine that's filed over 1 million returns. Give Claude your tax documents (e.g. W-2s) and get a 1040 PDF back.

Tools: 10 · Prompts: 0

2026-03-22
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Productivity
Penny by AccTek

Penny by AccTek

By AccTek Ltd

Penny by AccTek is a finance data assistant for AccTek clients and approved Penny trial users. Penny retrieves structured summaries from your connected accounting data and explains cash, KPIs, management summaries, anomalies, report links, data freshness and reconciliation status in plain English. Penny cannot change accounting records, make payments, file returns, submit accounts, or replace professional advice from AccTek. Where accounting or tax judgement is needed, Penny should refer you to AccTek.

Tools: 6

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Financial-Services
Mercury

Mercury

By Mercury

Check your balance, download statements, search/analyze/graph transactions, and understand Cards directly from Claude. Mercury brings your finances into your AI tools

Tools: 5 · Prompts: 4

2026-01-12
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Finance
Dospay

Dospay

By Noodle Seed

Dospay provides trusted escrow and third-party managed account services for high-value and complex transactions. Get expert guidance on escrow accounts, payment management, and secure fund holding. Learn about UK escrow services including construction escrow, M&A escrow, divorce escrow, marine escrow, and third-party managed accounts (TPMAs) for legal professionals, executors, and corporate clients. The Dospay ChatGPT App gives users access to general business information such as website and contact email address. The app also allows users to get in touch with the Dospay team.

Tools: 4 · Prompts: 2

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Finance
TaxMadeEazy: Rideshare Ded

TaxMadeEazy: Rideshare Ded

By TEKPartner

Who it's for: U.S. rideshare and gig economy drivers — Uber, Lyft, DoorDash, Instacart, and similar platforms. Whether you're a full-time driver or earning on the side, TaxMadeEazy helps you discover deductions you might be missing. What it does: Explore an interactive checklist of IRS-sourced tax deductions tailored to rideshare and gig drivers. Mark deductions as "already claimed" or "didn't know about" and watch your estimated savings grow in real time with our savings meter. How it works: - Browse deduction categories (mileage, vehicle expenses, phone & technology, health insurance, and more) - Mark each deduction to build your personalized summary - See estimated savings based on your selections - Connect with a verified CPA who specializes in rideshare taxes for professional guidance What it doesn't do: TaxMadeEazy is informational only. It does not file taxes, calculate refunds, or provide professional tax advice. All deduction information is sourced from IRS publications and is provided for educational purposes. Always consult a qualified tax professional before making tax decisions. Free, no signup required. Start exploring your deductions immediately — no account creation, no payment, no strings attached.

Tools: 4 · Prompts: 1

2026-05-20
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Financial-Services
Intuit TurboTax

Intuit TurboTax

By Intuit

Get fast federal tax estimates and discover filing options with Intuit TurboTax-powered tools. Start with a simple tax estimator that guides you through the info you need and see your refund or amount owed as you go. When you're ready for expert help, connect with trusted tax pros. Confident tax filing starts here. By connecting, you agree to the Intuit TurboTax Terms of Service and acknowledge Intuit's Global Privacy Statement.

Tools: 1 · Prompts: 4

2025-12-22
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Finance
Obolus

Obolus

By Obolus Finance Apps

Obolus helps users calculate net income from gross salary and compare salary, tax, and social contribution outcomes across supported countries. The app supports detailed payroll calculations for one or two persons, cross-country net income comparisons, and a ChatGPT result panel for relocation, job offer, and salary planning workflows.

Tools: 2 · Prompts: 1

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Finance
AgentCollect

AgentCollect

By Respaid Inc (dba AgentCollect)

AgentCollect connects your AR recovery data to your assistant. Ask "how much did we recover last quarter?", "what's my recovery rate?", or "which accounts paid the most?" and get a complete, business-framed answer scoped strictly to your own account. Read-only, OAuth-secured, no write access.

Tools: 1

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Financial-Services

Ontra

By Ontra

The Ontra MCP Server lets you query your Ontra data directly from Claude and other AI tools — no need to switch between applications. Ask questions about legal entities, ownership structures, funds, people, agreements, tax classifications, jurisdictions, and more. Results respect your existing Ontra permissions, so users only see data they already have access to. Setup takes about a minute via a quick OAuth flow with your Ontra credentials.

Tools: 5

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Financial-Services

Embat

By Embat

Query your cash, debt, treasury forecasts, accounting, PSP reconciliations, payments, and intercompany positions in plain language — answered with your real numbers from Embat. TellMe is read-only and inherits your existing permissions, so every reply is scoped to what you can already see. Make your treasury management system a native part of your AI workflow, without leaving the conversation.

Tools: 1

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