TaxDown

Tu declaración de la renta en 15 min. Sin errores.

Tax preparation service in 64 (show on map)

4.7

★★★★★

18 reviews

TaxDown is an online tax filing service that uses AI and human fiscal experts to prepare, optimize, and submit Spanish tax declarations (IRPF) and other fiscal models.

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About

TaxDown is a Spanish fintech tax preparation service that makes filing your Spanish tax return (declaración de la renta / IRPF) simple and optimized. Users connect their fiscal data securely via Cl@ve to the Agencia Tributaria, and TaxDown's AI (Luz) automatically identifies applicable deductions — including regional, maternity, rental, and family-related deductions — that the standard Hacienda borrador often misses. Ever

y return is then reviewed by a human, colegiado fiscalista before submission. The platform serves a wide range of taxpayers: asalariados, autónomos, investors with stocks or crypto, property owners with rental income, expats under the Beckham law, and non-residents. Services include IRPF filing, quarterly models (036, 037, IVA), criptoasset tracing, rental income calculation, and support with Hacienda notifications and requerimientos. TaxDown is a Colaborador Social of the AEAT and holds a 4.7/5 rating from over 50,000 users. It was founded in Spain and operates nationwide.

AI (Luz) trained on 800,000+ real declarations detects deductions others miss

Human fiscal expert reviews every declaration before submission

Colaborador Social of the AEAT — direct, secure Cl@ve connection

Average savings of 350-483€ per declaration

4.7/5 rating from 50,000+ users and 2,000,000+ declarations filed

Response within 24 hours by chat, email, or phone

Defense against Hacienda requerimientos included in Premium plans

150+ regional and state deductions automatically applied

Services

IRPF Declaration Filing (Renta)

Complete preparation, optimization, expert review, and electronic filing of your annual IRPF tax return with Hacienda.

AI-powered deduction optimization Human fiscal expert review before submission Direct connection with AEAT via Cl@ve Cross-validation with your Hacienda borrador Support with Hacienda notifications and requerimientos

Free Tax Return Calculator

Free, no-commitment tool to estimate your tax refund or amount owed based on your salary, community, and personal situation.

Estimates refund in under 30 seconds Considers regional deductions, family status, mortgage, pension contributions No registration required Orientative estimate based on average deductions

Autónomo Tax Services

Specialized tax services for self-employed professionals: quarterly filings, high-speed tariff, and administrative management.

IRPF trimestral filing IVA trimestral filing Modelo 036 and 037 preparation IAE/CNAE converter Tarifa plana (reduced self-employment quota) Cuotas 2025 calculator

Investor and Crypto Tax Service

Automated calculation of capital gains/losses, cryptoasset tracing, and integration with investment platforms for tax filing.

Automatic gain/loss calculation Cryptoasset transaction tracing and organization Integration with investment platforms and wallets Exchanges tracking Trazabilidad cripto for renta filing

Property and Rental Tax Service

Automatic calculation of rental income and expenses, identification of deductible costs, and fiscal exemptions for property owners.

Automatic rental income and expense calculation Identification of deductible expenses Fiscal exemption detection Multiple property management Integration with renta declaration

Expat and Non-Resident Tax Service

Fiscal support for expatriates, foreign residents, and non-residents, including Beckham law (Modelo 149/151) and Modelo 210.

Modelo 7P support Beckham law (Ley Beckham) application Modelo 149 and 151 preparation Modelo 210 for non-residents Residency and secondment trámites Foreign income reporting

Credentials & Certifications

Colaborador Social de la Agencia Tributaria (AEAT)

Cl@ve authentication system

Reviews

Rating

4.7

★★★★★

Reviews

"Their guidance is clear, professional, and backed by strong tax expertise."

Frequently Asked Questions

How much does TaxDown cost? +

TaxDown offers a free plan for calculating your result. For filing, plans start at 35€ (PRO), 45€ (LIVE), and 65€ (FULL), varying by your fiscal situation (asalariado, propietario, autónomo, inversor). You always see the price before paying.

Is it safe to connect my Hacienda data? +

Yes. TaxDown is a Colaborador Social of the Agencia Tributaria — connection is via Cl@ve, and they never ask for your password. Your data travels encrypted and is never shared with third parties.

What happens if Hacienda asks for more information after filing? +

If you receive a requerimiento, TaxDown's fiscal team helps you respond. In Premium plans, they assume full defense against Hacienda at no additional cost.

How long does it take to receive my refund? +

Hacienda returns refunds in 1 to 6 months, normally before the end of the year. TaxDown notifies you when your declaration is received and when the refund is approved.

Can I use TaxDown if I am autónomo, investor, or expat? +

Yes — TaxDown has specific plans for each situation. Autónomos with invoices, investors with stocks or crypto, property owners with rentals, and resident/non-resident expats. Each plan adapts to your real deductions.

Can I use TaxDown for free? +

Yes, TaxDown allows you to calculate your declaration for free and you can receive technical support during the simulation process. For expert guidance, filing with Hacienda, and post-filing support, you must subscribe to a paid plan.

How much does it cost to file with TaxDown? +

To file your declaration you must subscribe to a plan: PRO (from 35€), LIVE (from 45€), or FULL (from 65€). The exact price depends on your fiscal situation selected at signup.

How does the subscription work and what does it include? +

The subscription includes fiscal advisory services for that tax year. All plans include: electronic filing with AEAT, assistance during the declaration via chat or email, pre-submission review, year-round fiscal support, and AEAT notification management.