Full Charge Bookkeeping & Accounting Services in Guilford, CT

Welcome to Assurance Tax Preparation and Bookkeeping LLC

Welcome to Assurance Tax Preparation and Bookkeeping LLC, your trusted Guilford accounting firm. With years of experience and a commitment to excellence, we provide personalized financial solutions tailored to your personal and/or business’s specific needs. Known for our expertise and our commitment to client success, we offer a wide range of accounting services in Guilford tailored to your specific needs. Regardless of your business type or size, we provide expert Guilford accounting services giving business owners peace of mind. We will help navigate all elements of your finance and accounting needs with confidence. Contact us today for reliable, professional accounting services in Guilford that you can count on.

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Services for Businesses

Let us be your trusted partner in driving your company’s growth and success. We work closely with you to understand your business’s needs and develop strategies to align with your vision. With professional guidance and a commitment to excellence, we’re here to help your business thrive in a competitive and evolving marketplace.

Services for Individuals

Our services are designed to help you navigate life’s challenges and opportunities with confidence. Our team is dedicated to understanding your unique goals and providing tailored strategies to support your journey. No matter where you are on your financial journey, we’re here to provide the guidance and support you need to move forward with confidence.

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Our Story

Our company is built on an unwavering passion for helping clients reach their goals and achieve financial success. Committed to personalized service and integrity, we provide reliable, tailored solutions designed for each individual. No matter your financial needs, we partner with you to deliver expert guidance at every step.

Excellence & Professionalism

We provide exceptional support and solutions for a diverse range of clients. With years of experience and expertise in navigating complex financial landscapes, we deliver personalized strategies that uphold the highest standards of excellence, ensuring each client’s unique needs are met and empowering them to achieve long-term success.

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Chaez Boswell
July 14, 2025
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Running a live music and entertainment venue like The Rink Studios comes with a million moving parts — and, truthfully, my books were in serious disarray. From the very beginning, Jayne Romero and her team at Assurance Bookkeeping Services met me exactly where I was. She didn’t judge where things were at; instead, she focused on making the process of getting organized simple, approachable, and stress-free. Jayne has an impressive grasp of accounting and QuickBooks, but what stands out the most is her ability to break things down in a way that made sense for me. She respected my communication style and was flexible enough to adapt to it, which is not something every bookkeeper can do. As a CEO juggling countless responsibilities, I deeply appreciate her patience and understanding of how much I carry on my plate. Jayne took the time to really get to know my business — which is far from traditional — and developed custom systems that aligned with my financial structure and my personal workflow. That kind of intentionality is rare. Thanks to Jayne, I now have a solid grip on my business finances and feel more confident in the direction we're heading. If you’re looking for someone who’s not just skilled, but also genuinely invested in your success, Jayne is the one to call.
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Chaez Boswell
July 14, 2025
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As a small nonprofit based in California, Indie Things Possible relies heavily on trusted partnerships to keep our operations running smoothly — and working with Assurance Bookkeeping Services has been one of the best decisions we’ve made. Jayne Romero provides remote bookkeeping services that are not only incredibly efficient but also grounded in a deep understanding of accounting principles and QuickBooks. We’ve entrusted her with access to our QuickBooks and bank accounts, and she has proven time and again to be extremely trustworthy, professional, and detail-oriented. Her organizational skills are exceptional, and she consistently delivers work in a timely manner with fast, thoughtful responses whenever questions arise. What truly sets Jayne apart is her dedication to understanding the unique needs of our organization. She took the time to learn how our nonprofit operates, and her guidance has helped us make informed financial decisions with confidence. We are beyond grateful for the level of care and expertise she brings to our books. If you're looking for a reliable, responsive, and knowledgeable bookkeeper — especially one who truly values your mission — we highly recommend Assurance Bookkeeping Services.
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Ray Kanter
April 13, 2025
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Jayne is a very generous, competent person. She helped a family member of mine out immeasurably, and continues to do so. She is almost always available, totally honest and trustworthy, and cares about her client above and beyond the call of duty. I never question my decision to hire her and recommend her to anyone and everyone.
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Ron G Johnson
September 26, 2022
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Had the pleasure of working with Jayne for about 10 years. Her Financial Good Sense coupled with a gift of organization and common sense, has saved me a lot of time and money. Easy to reach with any questions or concerns. Performance always exceeds promises.
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Sara Guillemette
September 26, 2022
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Jayne, founder of Assurance Bookkeeping & Payroll Service, LLC is TRUSTWORTHY. Above all, she's courteous, calm, collected and exceptionally thorough. I've hired her for Washington Home Care LLC - a non medical caregiver registry. I now ask "Is this an actionable? Anything you need from me?" because Jayne keeps me so informed. You are certain to appreciate Jayne's life experience, detail, and perseverance as much as I do.

Call us for a Free Consultation

Ready to take control of your finances? Contact us today to schedule a free consultation to learn how we can help you achieve your financial goals. Our team is here to provide personalized solutions for you. Reach out today and let’s start building a successful financial future together!