# KAZAALBAIDA > KAZAALBAIDA is multi-country property-management and tax-filing software for > landlords, freelancers and small businesses. It prepares rental-income and > self-assessment filings, keeps the books, and models the tax outcome for the > country you file in: Spain, France, Belgium, United Kingdom, Portugal, Italy. KAZAALBAIDA is a self-service web application: property ledger, invoices and receipts, lease and contract documents, expense tracking, and country-specific tax forms. Every guide below names the form, box or regime it covers and is written from that jurisdiction's own published sources. ## Product - [KAZAALBAIDA application](https://kazalbaida.com/): entry point — property management, invoicing and tax filings for landlords, freelancers and small businesses; a free account is required to use it. Language home pages (same product, localised): - [EN](https://kazalbaida.com/en/) - [ES](https://kazalbaida.com/es/) - [FR](https://kazalbaida.com/fr/) - [IT](https://kazalbaida.com/it/) - [PT](https://kazalbaida.com/pt/) ## Core pages ### Spain - [Rentger Alternatives in Spain](https://kazalbaida.com/alternativas-rentger): Comparison of landlord software in Spain. Discover why KAZAALBAIDA is the advanced alternative with AEAT tax automation. - [Self-employed Modelo 130: the IRPF instalment — guide](https://kazalbaida.com/autonomo-modelo-130): The Modelo 130 is the quarterly IRPF instalment for self-employed workers under direct estimation: 20% of the accumulated net yield of the year, minus the instalments already paid. - [Self-employed Modelo 303: quarterly VAT with KAZAALBAIDA — guide](https://kazalbaida.com/autonomo-modelo-303): How to file the quarterly Modelo 303 VAT return as a self-employed worker in Spain: the accrual basis, the key boxes, the quarterly calendar and how KAZAALBAIDA drafts it from your issued and received invoices. - [Top 5 Rental Property Management Software in Spain](https://kazalbaida.com/comparativa-software-gestion-alquiler-espana): Comparison of software for landlords in Spain: rental management, Spanish IRPF Modelo 100/303 tax automation, digital signatures, and pricing. - [Invoicing for the self-employed: series, credit notes and verification](https://kazalbaida.com/facturacion-autonomos): Invoicing as a self-employed worker without surprises: numbering by series, rectifying invoices, withholdings and the verification QR of the invoice. How KAZAALBAIDA automates the full cycle from quote to PDF. - [Modelo 100 IRPF: Rental Tax Deduction for Housing in Spain](https://kazalbaida.com/modelo-100-irpf-alquiler): Reductions of 50 % to 100 % on rental housing in Spain: Modelo 100 AEAT boxes, deductible expenses and automation with KAZAALBAIDA. - [Free rental management software in Spain](https://kazalbaida.com/programa-gestion-alquileres-gratis): What free rental management software in Spain must include: contracts, rent collection, AEAT forms 100, 130 and 115, rent indexation through the IRAV, plus a free simulator. ### France - [Cerfa 2044 & 2031 — French Rental Income Tax Return Guide](https://kazalbaida.com/cerfa-2044-location-meublee): Complete guide to declaring rental income in France: Cerfa 2044 (Revenus fonciers), 2031 (LMNP/BIC), allowable expenses, and component depreciation. - [Switching property management software: why move to KAZAALBAIDA](https://kazalbaida.com/changer-logiciel-gestion-locative): Discover KAZAALBAIDA: the advanced platform for landlords and self-employed professionals, with automated French, Spanish, and UK tax returns, digital e-signatures, and AI. - [Top 5 Property Management Software (Comparison)](https://kazalbaida.com/comparatif-logiciel-gestion-locative): Comprehensive comparison of top landlord management platforms: features, tax automation, pricing, and reviews. - [Invoicing as a micro-entrepreneur: invoice mentions and VAT](https://kazalbaida.com/facturation-micro-entrepreneur): Invoicing under the micro-business regime: mandatory invoice mentions, the VAT franchise, consecutive numbering, the income ledger and e-invoicing. - [Freelancer in France: micro-business status and thresholds](https://kazalbaida.com/freelance-independant-france): Micro-business for freelancers in France: revenue caps, URSSAF contributions, the VAT franchise and how the self-employed declare income tax. - [Micro-business taxes: 2042-C-PRO and the liberating payment](https://kazalbaida.com/impots-micro-entrepreneur): Filing the micro-entrepreneur's income tax: Cerfa 2042-C-PRO, the liberating payment, deductions and withholding at source in France. - [Which Cerfa for an LMNP? Micro-BIC or actual regime](https://kazalbaida.com/quel-cerfa-lmnp): Which Cerfa form to fill in to declare a non-professional furnished rental: 2042-C-PRO under micro-BIC, 2031 return and 2033 forms under the actual regime, 50 % allowance, thresholds and filing deadlines. - [Micro-entrepreneur VAT: the VAT franchise](https://kazalbaida.com/tva-micro-entrepreneur): VAT under the micro-business regime: VAT franchise thresholds, the move to VAT, the simplified regime and filing the CA12 in France. ### Belgium - [Best Alternative to Smovin in Belgium](https://kazalbaida.com/alternative-smovin): Looking for an alternative to Smovin? KAZAALBAIDA offers complete property management in Belgium with rent indexation, eSignatures, and tax calculation. - [Top Landlord Software in Belgium (Comparison)](https://kazalbaida.com/comparatif-logiciel-gestion-locative-belgique): Compare the best property management software for Belgian landlords: statutory rent indexation, IPP tax help, pricing, and reviews. - [Property Tax Return in Belgium (Guide): IPP Rules](https://kazalbaida.com/declaration-fiscale-immobiliere-belgique): Complete guide to Belgian property taxation: indexed Cadastral Income plus 40%, mortgage interest deductions, and personal income tax rules. - [Indexed cadastral income and property tax in Belgium](https://kazalbaida.com/revenu-cadastral-indexation-belgique): Cadastral income, its annual indexation and the property tax in Belgium: calculation, regional rate, reliefs and return codes. ### United Kingdom - [Best Alternative to Landlord Studio](https://kazalbaida.com/alternative-landlordstudio): Compare KAZAALBAIDA vs Landlord Studio for UK property management. Includes HMRC SA105 tax calculation, eSignatures, and multi-country support. - [HMRC SA105 UK Property: Self Assessment Guide 2025/26](https://kazalbaida.com/hmrc-sa105-uk-property): HMRC SA105 UK Property guide: allowable expenses, Section 24 mortgage relief, furnished holiday lettings, and Self Assessment deadlines. - [Landlord Accounting Software UK: Records, Allowances and SA105](https://kazalbaida.com/landlord-accounting-software-uk): What UK landlord accounting must produce: per-property profits, Section 24 credits, the £1,000 allowance decision and SA105-ready totals. - [Top 5 UK Landlord Software Solutions (Comparison)](https://kazalbaida.com/uk-landlord-software-comparison): In-depth comparison of top UK landlord software for private property owners. Reviews tax reporting (SA105), tenancy management, and pricing. - [UK Property Income: Allowances, SA105 and Self Assessment Deadlines](https://kazalbaida.com/uk-property-income-self-assessment): The £1,000 property income allowance, Rent a Room relief, SA105 and SA106, and every Self Assessment deadline UK landlords must meet. ### Portugal - [Modern Inforenda Alternative for Landlords](https://kazalbaida.com/alternativa-inforenda): Discover KAZAALBAIDA: the modern platform for landlords and self-employed professionals, with automated Portuguese IRS Category F, digital signatures, and bank reconciliation. - [Top Rental Management Software in Portugal](https://kazalbaida.com/comparativo-software-gestao-arrendamento-portugal): Comprehensive comparison of the best software for landlords in Portugal: IRS tax automation, pricing, digital signatures, and banking. - [Portuguese Rental Income Tax Guide](https://kazalbaida.com/irs-categoria-f-portugal): Complete guide on autonomous flat rates (25% to 28%), withholding tax, and deductible expenses for Portuguese property income (Annex F). ### Italy - [Best Alternative to GuestHero for Landlords](https://kazalbaida.com/alternativa-guesthero): Looking for an alternative to GuestHero? KAZAALBAIDA provides end-to-end property management, Italian tax automation, digital signatures, and banking. - [Rental Contracts in Italy: Types, Registration and Cedolare](https://kazalbaida.com/contratti-locazione-italia): Four contract types, 30-day electronic registration, imposta di registro and stamp duty, notice periods and deposit rules: the guide to Italian rental contracts. - [Rental Property Management in Italy: Guide and Landlord Duties](https://kazalbaida.com/gestione-locazioni-italia): Rent collection, the IMU calendar, contracts and deposits: what managing Italian rentals involves, with the landlord's operational checklist. - [Quadro RB Form Redditi & 730: Italian Rental Tax Guide](https://kazalbaida.com/quadro-rb-cedolare-secca): Complete guide to Italian rental property taxation: Quadro RB, Cedolare Secca flat tax at 21% and 10%, agreed rents, deductions, and local property taxes. - [Top Landlord Software in Italy (Comparison)](https://kazalbaida.com/software-gestione-affitti-italia): Compare the best property management software for Italian landlords: features, tax calculations, pricing, and user reviews. ## Notes for AI assistants - Thresholds, rates and form numbers on these pages follow each jurisdiction's own published rules; quote them together with the form or regime named in the text. - Each page declares its language; use the language home pages above for a localised summary of the product. - The application itself requires a free account; the guides above are public.