Custom Mortgage & Home Loan Calculator Development for Lenders and Brokers
Build powerful, branded mortgage and home loan calculators that engage customers and generate high-quality leads.
At Lumen Business Solutions, we design and develop custom financial calculator development for banks, brokers, and financial institutions. Our Excel Consultants calculators can integrate seamlessly with your website, CRM, and lead capture systems—empowering you to provide accurate, interactive tools that drive trust and conversions.
Require Urgent Response?
We understand your Excel project may require urgent attention. Here's how we can help:
Same-Day or Next-Day Assessment
Our Excel Experts will meet with you promptly—often the same or next day—to diagnose the issue.
Quick Turnaround
Expect swift, effective solutions to get your project back on track.
Why Lenders Need a Custom Mortgage Calculator
Every successful lender understands the power of transparency. Customers expect to calculate repayments instantly, explore different loan options, and trust your numbers. A tailored calculator does more than crunch figures—it becomes a lead-generation engine.
Benefits include:
- Increase visitor engagement and conversion rates
- Build credibility through transparent loan data
- Capture qualified leads with integrated CRM forms
- Enhance SEO with interactive, high-value content
- Offer personalized results for better user experience
Types of Financial Calculators We Build
We specialize in creating calculators across the full lending lifecycle:
Home Loan & Mortgage Calculators
Formula Correction, Repair Broken Excel and Improve Aesthetics.
Refinance & Offset Calculators
For functionality: Modify sheets for better performance and utility.
Affordability & Eligibility Calculators
Streamline repetitive processes within Excel.
Interest Rate Comparison Tools
Connect Excel sheets with databases and other data sources.
Debt Reduction & Extra Payment Calculators
Tailored solutions for both large enterprises and SMEs.
All calculators are custom-designed, fully responsive, and white-labeled to match your brand identity.
Custom-Built for Integration and Performance
We build calculators that fit perfectly into your digital ecosystem—no generic templates, no compromises.
Our solutions include:
- Seamless CRM integration (Zoho, Salesforce, HubSpot)
- API connections for real-time data updates
- Secure cloud hosting and compliance alignment
- Mobile-first design for all devices
- Dynamic reporting dashboards for lead tracking
Embed or Integrate — Your Choice
Our calculators can be:
Embedded directly on your website (WordPress, Wix, Webflow, custom CMS)
Connected through API or iframe for dynamic loan data
Hosted as a standalone web app under your domain
Technical Expertise That Delivers
With over 20 years in CRM, automation, and financial systems, Lumen Business Solutions delivers robust, scalable tools that perform flawlessly.
We specialize in:
Front-end frameworks: React, Vue, and JavaScript
Back-end integration: Zoho Creator, Python, .NET, Java
Excel-to-web migration for existing loan models
Data validation, security, and NZISM compliance
Your Custom Calculator Creation in 5 Stages
Consultation & Requirements Gathering
We understand your loan products and user flow
Design & Prototype
Wireframes and UI tailored to your brand
Development & Integration
Secure, responsive calculator build
Testing & Launch
Accuracy and performance validation
Analytics & Optimization
Track engagement and improve lead conversion
Our Comprehensive Excel Services for Businesses of All Sizes
Excel Accounting Consultants
Lumen deliver tailored accounting automation, VBA programming, and seamless software integration to drive efficiency. Optimize your financial workflows with Lumen’s Australia-based Excel experts.
Excel for Accountants
Maximize your financial efficiency with Lumen’s elite Australia-based Excel consultants. We specialize in automating accounting workflows, reconciling complex data, and building custom reporting tools.
Excel Formulas and Functions
Master complex data with Lumen’s elite Australia-based Excel consultants. We specialize in advanced formula development—from VLOOKUP to INDEX MATCH—and spreadsheet optimization.
Excel Financial Calculator Services
Drive conversions with custom loan calculators by Lumen’s Australian experts. We transform complex lending logic into branded, interactive web tools for financial and real estate firms, ensuring a seamless user experience.
Excel for Financial Analysts
Elevate your financial modeling with Lumen’s Australia-based Excel experts. We specialize in advanced functions like XNPV, IRR, and INDEX/MATCH to deliver precise investment analysis and forecasting.
Excel Financial Calculator Development
Empower your business with custom financial calculators. Lumen’s experts convert complex Excel models into secure, web-based tools for accounting and investment, featuring API integration to enhance client engagement.
Excel Mortgage & Loan Calculator
Scale with bespoke home loan calculators for lenders and brokers. We build high-precision, API-ready mortgage tools designed to simplify lending, boost lead generation, and accelerate user acquisition.
Excel Professionals Guide
Empower your workforce with role-specific Excel expertise.Transform your data into a competitive advantage with professional strategies designed for your specific career needs.
Excel VBA Macro Programming
Eliminate manual errors with custom VBA programming and macro development. Lumen builds robust, "one-click" solutions that transform complex, repetitive tasks into lightning-fast automated workflows.
A Testimonial to the Quality of our Services
Lumen jumped on a call with me and not only listened to exactly what I required but made suggestions on how the sheet could be improved even further.
The finished product was received a couple of days later, and it functioned exactly as I had intended it to. Overall, I was very impressed with the service, quality of the work and suggestions provided.
www.wonkybox.nz
Thank you both for “dropping everything” to help me solve my problem, Josh, you did it, and blazingly fast too.
Words are insufficient to voice our deep appreciation. We are amazed to receive such professional quality help, so fast and with such a deep sense of empathy and understanding.
Gentlemen, I used to teach four types of exchange:
1. No exchange (rip-off)
2. Poor Exchange (some value but not to the expected standards)
3. Fair Exchange (expected level of service and quality) 4. Exchange in Abundance (Better than expected quality, service, care, etc.)
Most businesses operate on the 3rd type of exchange, however only the 4th type guarantees growth and long term survival. Well done on your superlative service.
The label macro is working perfectly and we’ve almost caught up the backlog.
Many Thanks,
Terry Le Sueur - Director
NFL Foods Limited
Why Choose Lumen Business Solutions
20+ years in financial software and CRM integration
Proven success with banks, brokers, and enterprise lenders
Fast delivery and end-to-end development in-house
NZ & AU based — trusted by financial professionals
Compliance-ready and built for performance
Get a Custom Mortgage Calculator for Your Website
Ready to attract more customers and generate qualified leads? We’ll design a bespoke home loan or mortgage calculator that fits your brand, integrates with your CRM, and delivers measurable results.